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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 14 |
| 6 | 24 |
| 7 | 41 |
| 8 | 66 |
| 9 | 105 |
| 10 | 165 |
| 11 | 253 |
| 12 | 383 |
| 13 | 574 |
| 14 | 847 |
| 15 | 1238 |
| 16 | 1794 |
| 17 | 2573 |
| 18 | 3660 |
| 19 | 5170 |
| 20 | 7245 |
| 21 | 10087 |
| 22 | 13959 |
| 23 | 19196 |
| 24 | 26252 |
| 25 | 35717 |
| 26 | 48342 |
| 27 | 65121 |
| 28 | 87331 |
| 29 | 116600 |
| 30 | 155038 |
| 31 | 205343 |
| 32 | 270928 |
| 33 | 356169 |
| 34 | 466610 |
| 35 | 609237 |
| 36 | 792906 |
| 37 | 1028764 |
| 38 | 1330772 |
| 39 | 1716486 |
| 40 | 2207851 |
[0,1,2,4,8,14,24,41,66,105,165,253,383,574,847, 1238,1794,2573,3660,5170,7245,10087,13959,19196, 26252,35717,48342,65121,87331,116600,155038, 205343,270928,356169,466610,609237,792906,1028764, 1330772,1716486,2207851] |